CVE-2020-26147
published 2021-05-11CVE-2020-26147: An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in…
PriorityP434medium5.4CVSS 3.1
AVAACHPRNUIRSUCLIHAN
EPSS
7.60%
93.9th percentile
An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 5.10.46-1 (bookworm) | linux 5.10.46-1 (bookworm) |
| android | — | — | |
| linux | linux_kernel | >= 0 < 5.10.46-1 | 5.10.46-1 |
| linux | linux_kernel | >= 0 < 5.10.46-1 | 5.10.46-1 |
| linux | linux_kernel | >= 0 < 5.10.46-1 | 5.10.46-1 |
| linux | linux_kernel | >= 0 < 5.10.46-1 | 5.10.46-1 |
| linux | linux_kernel | >= 0 < 4.15.0-151.157 | 4.15.0-151.157 |
| linux | linux_kernel | >= 0 < 5.4.0-77.86 | 5.4.0-77.86 |
| linux | linux_kernel | >= 0 < 4.4.0-222.255 | 4.4.0-222.255 |
| linux | linux_kernel | >= 0 < 4.4.0-219.252 | 4.4.0-219.252 |
| linux | linux_kernel | >= 4.14 < 4.14.235 | 4.14.235 |
| linux | linux_kernel | >= 4.19 < 4.19.193 | 4.19.193 |
| linux | linux_kernel | >= 4.4 < 4.4.271 | 4.4.271 |
| linux | linux_kernel | >= 4.9 < 4.9.271 | 4.9.271 |
| linux | linux_kernel | >= 5.10 < 5.10.42 | 5.10.42 |
| linux | linux_kernel | >= 5.12 < 5.12.9 | 5.12.9 |
| linux | linux_kernel | >= 5.4 < 5.4.124 | 5.4.124 |
CVSS provenance
nvdv3.15.4MEDIUMCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N
nvdv2.03.2LOWAV:A/AC:H/Au:N/C:P/I:P/A:N
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_cisco6.5MEDIUM
vendor_debian5.4MEDIUM
vendor_redhat5.4MEDIUM
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CISA ICS
Siemens SCALANCE FragAttacks
cisa_ics·2022-04-14
Siemens SCALANCE FragAttacks
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Siemens SCALANCE FragAttacks
Last RevisedApril 14, 2022
Alert CodeICSA-22-104-04
## 1. EXECUTIVE SUMMARY
- CVSS v3 6.5
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: SCALANCE family devices
- Vulnerabilities: Improper Authentication, Injection, Improper Validation of Integrity Check, Improper Input Validation
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker within Wi-Fi range to forge encrypted frames, which could result in sensitive data disclosure and traffic manipulation.
## 3. TECHNI
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2022-03-22·CVSS 7.8
CVE-2020-25673 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the
Linux kernel did not properly restrict access to the cgroups v1
release_agent feature. A local attacker could use this to gain
administrative privileges. (CVE-2022-0492)
It was discovered that the aufs file system in the Linux kernel did not
properly restrict mount namespaces, when mounted with the non-default
allow_userns option set. A local attacker could use this to gain
administrative privileges. (CVE-2016-2853)
It was discovered that the aufs file system in the Linux kernel did not
properly maintain POSIX ACL xattr data, when mounted with the non-default
allow_userns option. A local attacker could possibly us
BSD
FreeBSD-SA-22:02.wifi: Multiple WiFi issues
bsd_advisories·2022-03-15·CVSS 3.5
CVE-2020-24588 [LOW] FreeBSD-SA-22:02.wifi: Multiple WiFi issues
FreeBSD-SA-22:02.wifi Security Advisory
The FreeBSD Project
Topic: Multiple WiFi issues
Category: core
Module: net80211
Announced: 2022-03-15
Affects: FreeBSD 12.x and FreeBSD 13.0
Corrected: 2021-11-19 00:01:25 UTC (stable/13, 13.0-STABLE)
2022-03-15 17:45:36 UTC (releng/13.0, 13.0-RELEASE-p8)
2022-02-15 16:05:49 UTC (stable/12, 12.3-STABLE)
2022-03-15 18:18:08 UTC (releng/12.3, 12.3-RELEASE-p3)
2022-03-15 18:17:30 UTC (releng/12.2, 12.2-RELEASE-p14)
CVE Name: CVE-2020-26147, CVE-2020-24588, CVE-2020-26144
Note: This issue is already fixed in FreeBSD 13.1-BETA1.
For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit .
I. Background
FreeBSD's net80211 kernel subsystem provi
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2022-02-22·CVSS 5.4
CVE-2020-26558 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could
reassemble mixed encrypted and plaintext fragments. A physically proximate
attacker could possibly use this issue to inject packets or exfiltrate
selected fragments. (CVE-2020-26147)
It was discovered that the bluetooth subsystem in the Linux kernel did not
properly perform access control. An authenticated attacker could possibly
use this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129)
It was discovered that the RPA PCI Hotplug driver implementation in the
Linux kernel did not properly handle device name writes via sysfs, leading
to a buffer overflow. A privileged attacker could use this to cause
Android
CVE-2020-26147: Closed-source component
vendor_android·2021-10-01·CVSS 5.4
CVE-2020-26147 [MEDIUM] CVE-2020-26147: Closed-source component
Android Security Bulletin 2021-10-01
CVE: CVE-2020-26147
Severity: HIGH
Component: Closed-source component
References: A-177910719
*
CISA ICS
Hitachi ABB Power Grids TropOS
cisa_ics·2021-08-24·CVSS 3.5
[LOW] Hitachi ABB Power Grids TropOS
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Hitachi ABB Power Grids TropOS
Last RevisedAugust 24, 2021
Alert CodeICSA-21-236-01
## 1. EXECUTIVE SUMMARY
- CVSS v3 7.5
- ATTENTION: Low attack complexity
- Vendor: Hitachi ABB Power Grids
- Equipment: TropOS
- Vulnerabilities: Injection, Inadequate Encryption Strength, Missing Authentication for Critical Function, Improper Authentication, Improper Validation of Integrity Check Value, Improper Input Validation
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker to direct a client that is connected to a TropOS Wi-Fi access point
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2021-07-20·CVSS 3.5
CVE-2021-0129 [LOW] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the virtual file system implementation in the Linux
kernel contained an unsigned to signed integer conversion error. A local
attacker could use this to cause a denial of service (system crash) or
execute arbitrary code. (CVE-2021-33909)
Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel
did not properly enforce limits for pointer operations. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2021-33200)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did
not properly clear received fragments from memory in some situations. A
physically proximate attacker c
Ubuntu
Linux kernel (KVM) vulnerabilities
vendor_ubuntu·2021-06-25·CVSS 3.5
CVE-2020-26145 [LOW] Linux kernel (KVM) vulnerabilities
Title: Linux kernel (KVM) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
USN-5000-1 fixed vulnerabilities in the Linux kernel for Ubuntu
20.04 LTS and the Linux HWE kernel for Ubuntu 18.04 LTS. This update
provides the corresponding updates for the Linux KVM kernel for Ubuntu
20.04 LTS.
Norbert Slusarek discovered a race condition in the CAN BCM networking
protocol of the Linux kernel leading to multiple use-after-free
vulnerabilities. A local attacker could use this issue to execute arbitrary
code. (CVE-2021-3609)
Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel
did not properly enforce limits for pointer operations. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code.
Ubuntu
Linux kernel (KVM) vulnerabilities
vendor_ubuntu·2021-06-25·CVSS 3.5
CVE-2020-26145 [LOW] Linux kernel (KVM) vulnerabilities
Title: Linux kernel (KVM) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
USN-4997-1 fixed vulnerabilities in the Linux kernel for Ubuntu 21.04.
This update provides the corresponding updates for the Linux KVM
kernel for Ubuntu 21.04.
Norbert Slusarek discovered a race condition in the CAN BCM networking
protocol of the Linux kernel leading to multiple use-after-free
vulnerabilities. A local attacker could use this issue to execute arbitrary
code. (CVE-2021-3609)
Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel
did not properly enforce limits for pointer operations. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2021-33200)
Mathy Vanhoef discovered that the L
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2021-06-23·CVSS 3.5
CVE-2021-31440 [LOW] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Norbert Slusarek discovered a race condition in the CAN BCM networking
protocol of the Linux kernel leading to multiple use-after-free
vulnerabilities. A local attacker could use this issue to execute arbitrary
code. (CVE-2021-3609)
Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel
did not properly enforce limits for pointer operations. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2021-33200)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did
not properly clear received fragments from memory in some situations. A
physically proximate attacker could possibly use this issu
Ubuntu
Linux kernel (OEM) vulnerabilities
vendor_ubuntu·2021-06-23·CVSS 3.5
CVE-2021-31440 [LOW] Linux kernel (OEM) vulnerabilities
Title: Linux kernel (OEM) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Norbert Slusarek discovered a race condition in the CAN BCM networking
protocol of the Linux kernel leading to multiple use-after-free
vulnerabilities. A local attacker could use this issue to execute arbitrary
code. (CVE-2021-3609)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did
not properly clear received fragments from memory in some situations. A
physically proximate attacker could possibly use this issue to inject
packets or expose sensitive information. (CVE-2020-24586)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation
incorrectly handled encrypted fragments. A physically proximate attacker
could possibly use this issue to decrypt
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2021-06-23·CVSS 3.5
CVE-2020-26139 [LOW] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Norbert Slusarek discovered a race condition in the CAN BCM networking
protocol of the Linux kernel leading to multiple use-after-free
vulnerabilities. A local attacker could use this issue to execute arbitrary
code. (CVE-2021-3609)
Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel
did not properly enforce limits for pointer operations. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2021-33200)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did
not properly clear received fragments from memory in some situations. A
physically proximate attacker could possibly use this issu
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2021-06-23·CVSS 3.5
CVE-2021-23134 [LOW] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Norbert Slusarek discovered a race condition in the CAN BCM networking
protocol of the Linux kernel leading to multiple use-after-free
vulnerabilities. A local attacker could use this issue to execute arbitrary
code. (CVE-2021-3609)
Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel
did not properly enforce limits for pointer operations. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2021-33200)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did
not properly clear received fragments from memory in some situations. A
physically proximate attacker could possibly use this issu
Red Hat
kernel: reassembling mixed encrypted/plaintext fragments
vendor_redhat·2021-05-11·CVSS 5.4
CVE-2020-26147 [MEDIUM] CWE-307 kernel: reassembling mixed encrypted/plaintext fragments
kernel: reassembling mixed encrypted/plaintext fragments
An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.
A flaw was found in ieee80211_rx_h_defragment in net/mac80211/rx.c in the Linux Kernel's WiFi implementation. This vulnerability can be abused to inject packets or exfiltrate selected fragments when another device sends fragmented frames, and the WEP, CCMP, or GCMP data-confidentiality protocol is used. The highest threat from this vulnerability is to integrity.
Mitigation:
Cisco
Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021
vendor_cisco·2021-05-11·CVSS 6.5
CVE-2020-24586 [MEDIUM] CWE-345 Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021
Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021
On May 11, 2021, the research paper Fragment and Forge: Breaking Wi-Fi Through Frame Aggregation and Fragmentation was made public. This paper discusses 12 vulnerabilities in the 802.11 standard. One vulnerability is in the frame aggregation functionality, two vulnerabilities are in the frame fragmentation functionality, and the other nine are implementation vulnerabilities. These vulnerabilities could allow an attacker to forge encrypted frames, which could in turn enable the exfiltration of sensitive data from a targeted device.
This advisory will be updated as additional information becomes available.
This advisory is available at the following link
Debian
CVE-2020-26147: linux - An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 ...
vendor_debian·2020·CVSS 5.4
CVE-2020-26147 [MEDIUM] CVE-2020-26147: linux - An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 ...
An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.
Scope: local
bookworm: resolved (fixed in 5.10.46-1)
bullseye: resolved (fixed in 5.10.46-1)
forky: resolved (fixed in 5.10.46-1)
sid: resolved (fixed in 5.10.46-1)
trixie: resolved (fixed in 5.10.46-1)
Cisco
Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021
vendor_cisco·CVSS 3.1
CVE-2020-26147 Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021
CVE-2020-26147: Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021
On May 11, 2021, the research paper Fragment and Forge: Breaking Wi-Fi Through Frame Aggregation and Fragmentation was made public. This paper discusses 12 vulnerabilities in the 802.11 standard. One vulnerability is in the frame aggregation functionality, two vulnerabilities are in the frame fragmentation functionality, and the other nine are implementation vulnerabilities. These vulnerabilities could allow an attacker to forge encrypted frames, which could in turn enable the exfiltration of sensitive data from a targeted device. This advisory will be updated as additional information becomes available. This advisory is available at the
GHSA
GHSA-f393-4p85-6h6g: An issue was discovered in the Linux kernel 5
ghsa_unreviewed·2022-05-24
CVE-2020-26147 [MEDIUM] GHSA-f393-4p85-6h6g: An issue was discovered in the Linux kernel 5
An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.
OSV
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
osv·2022-03-22·CVSS 7.8
CVE-2022-0492 [HIGH] linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the
Linux kernel did not properly restrict access to the cgroups v1
release_agent feature. A local attacker could use this to gain
administrative privileges. (CVE-2022-0492)
It was discovered that the aufs file system in the Linux kernel did not
properly restrict mount namespaces, when mounted with the non-default
allow_userns option set. A local attacker could use this to gain
administrative privileges. (CVE-2016-2853)
It was discovered that the aufs file system in the Linux kernel did not
properly maintain POSIX ACL xattr data, when mounted with the non-default
allow_userns option. A local attacker could possibly use this to gain
elevated privileges. (CVE
OSV
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
osv·2022-02-22·CVSS 5.4
CVE-2020-26147 [MEDIUM] linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could
reassemble mixed encrypted and plaintext fragments. A physically proximate
attacker could possibly use this issue to inject packets or exfiltrate
selected fragments. (CVE-2020-26147)
It was discovered that the bluetooth subsystem in the Linux kernel did not
properly perform access control. An authenticated attacker could possibly
use this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129)
It was discovered that the RPA PCI Hotplug driver implementation in the
Linux kernel did not properly handle device name writes via sysfs, leading
to a buffer overflow. A privileged attacker could use this to cause a
denial of service (system crash) or p
OSV
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
osv·2021-07-20·CVSS 3.5
CVE-2021-33909 [LOW] linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
It was discovered that the virtual file system implementation in the Linux
kernel contained an unsigned to signed integer conversion error. A local
attacker could use this to cause a denial of service (system crash) or
execute arbitrary code. (CVE-2021-33909)
Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel
did not properly enforce limits for pointer operations. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2021-33200)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did
not properly clear received fra
OSV
linux-kvm vulnerabilities
osv·2021-06-25·CVSS 3.5
CVE-2021-3609 [LOW] linux-kvm vulnerabilities
linux-kvm vulnerabilities
USN-5000-1 fixed vulnerabilities in the Linux kernel for Ubuntu
20.04 LTS and the Linux HWE kernel for Ubuntu 18.04 LTS. This update
provides the corresponding updates for the Linux KVM kernel for Ubuntu
20.04 LTS.
Norbert Slusarek discovered a race condition in the CAN BCM networking
protocol of the Linux kernel leading to multiple use-after-free
vulnerabilities. A local attacker could use this issue to execute arbitrary
code. (CVE-2021-3609)
Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel
did not properly enforce limits for pointer operations. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2021-33200)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implement
OSV
linux-oem-5.10 vulnerabilities
osv·2021-06-23·CVSS 3.5
CVE-2021-3609 [LOW] linux-oem-5.10 vulnerabilities
linux-oem-5.10 vulnerabilities
Norbert Slusarek discovered a race condition in the CAN BCM networking
protocol of the Linux kernel leading to multiple use-after-free
vulnerabilities. A local attacker could use this issue to execute arbitrary
code. (CVE-2021-3609)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did
not properly clear received fragments from memory in some situations. A
physically proximate attacker could possibly use this issue to inject
packets or expose sensitive information. (CVE-2020-24586)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation
incorrectly handled encrypted fragments. A physically proximate attacker
could possibly use this issue to decrypt fragments. (CVE-2020-24587)
Mathy Vanhoef discovered that the Linux kernel’s
OSV
linux, linux-aws, linux-aws-5.8, linux-azure, linux-azure-5.8, linux-gcp, linux-gcp-5.8, linux-hwe-5.8, linux-kvm, linux-oracle, linux-oracle-5.8, linux-raspi vulnerabilities
osv·2021-06-23·CVSS 3.5
CVE-2021-3609 [LOW] linux, linux-aws, linux-aws-5.8, linux-azure, linux-azure-5.8, linux-gcp, linux-gcp-5.8, linux-hwe-5.8, linux-kvm, linux-oracle, linux-oracle-5.8, linux-raspi vulnerabilities
linux, linux-aws, linux-aws-5.8, linux-azure, linux-azure-5.8, linux-gcp, linux-gcp-5.8, linux-hwe-5.8, linux-kvm, linux-oracle, linux-oracle-5.8, linux-raspi vulnerabilities
Norbert Slusarek discovered a race condition in the CAN BCM networking
protocol of the Linux kernel leading to multiple use-after-free
vulnerabilities. A local attacker could use this issue to execute arbitrary
code. (CVE-2021-3609)
Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel
did not properly enforce limits for pointer operations. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2021-33200)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did
not properly clear received fragments from memory in some
OSV
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-oracle, linux-oracle-5.4, linux-ra
osv·2021-06-23·CVSS 3.5
CVE-2021-3609 [LOW] linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-oracle, linux-oracle-5.4, linux-ra
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities
Norbert Slusarek discovered a race condition in the CAN BCM networking
protocol of the Linux kernel leading to multiple use-after-free
vulnerabilities. A local attacker could use this issue to execute arbitrary
code. (CVE-2021-3609)
Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel
did not properly enforce limits for pointer operations. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2021-33200)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation
Kernel
mac80211: assure all fragments are encrypted
kernel_security·2021-05-11·CVSS 5.4
CVE-2020-26147 [MEDIUM] mac80211: assure all fragments are encrypted
mac80211: assure all fragments are encrypted
Do not mix plaintext and encrypted fragments in protected Wi-Fi
networks. This fixes CVE-2020-26147.
Previously, an attacker was able to first forward a legitimate encrypted
fragment towards a victim, followed by a plaintext fragment. The
encrypted and plaintext fragment would then be reassembled. For further
details see Section 6.3 and Appendix D in the paper "Fragment and Forge:
Breaking Wi-Fi Through Frame Aggregation and Fragmentation".
Because of this change there are now two equivalent conditions in the
code to determine if a received fragment requires sequential PNs, so we
also move this test to a separate function to make the code easier to
maintain.
Cc: [email protected]
Signed-off-by: Mathy Vanhoef
Link: https://lore.kernel.or
OSV
CVE-2020-26147: An issue was discovered in the Linux kernel 5
osv·2021-05-11·CVSS 5.4
CVE-2020-26147 [MEDIUM] CVE-2020-26147: An issue was discovered in the Linux kernel 5
An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.
No detection rules found.
No public exploits indexed.
http://www.openwall.com/lists/oss-security/2021/05/11/12https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdfhttps://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdhttps://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlhttps://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuhttps://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63https://www.fragattacks.comhttp://www.openwall.com/lists/oss-security/2021/05/11/12https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdfhttps://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdhttps://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlhttps://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuhttps://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63https://www.fragattacks.comhttps://cert-portal.siemens.com/productcert/html/ssa-019200.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-913875.html
2021-05-11
Published